# 替换 replace
info = "abcde,你真牛！"
info1 = info.replace("abcde", "金三胖")
print(info1)

b = ['python', 'java', 'SQL']
# 分割 split
info2 = info1.split(",")
print(info2)

# 连接 join
info3 = " and ".join(b)
print(info3)

# 去除空格
C = " 123456 ".strip()
print(C)
